DE50106841D1 - Method for heating and cooling extruder cylinders and apparatus therefor - Google Patents
Method for heating and cooling extruder cylinders and apparatus thereforInfo
- Publication number
- DE50106841D1 DE50106841D1 DE50106841T DE50106841T DE50106841D1 DE 50106841 D1 DE50106841 D1 DE 50106841D1 DE 50106841 T DE50106841 T DE 50106841T DE 50106841 T DE50106841 T DE 50106841T DE 50106841 D1 DE50106841 D1 DE 50106841D1
- Authority
- DE
- Germany
- Prior art keywords
- oil
- temperature
- coolant
- pump
- varied
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/82—Heating or cooling
- B29B7/826—Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—Measuring, controlling or regulating
- B29B7/726—Measuring properties of mixture, e.g. temperature or density
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/82—Heating or cooling
- B29B7/823—Temperature control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
- B29C48/83—Heating or cooling the cylinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
- B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C2035/0211—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould resistance heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
- B29C2035/1616—Cooling using liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92609—Dimensions
- B29C2948/92657—Volume or quantity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Extrusion Of Metal (AREA)
Abstract
The quantity of oil used as a heat transfer medium, is controlled continuously. It can be varied between minimum and maximum flowrates An Independent claim is included for corresponding equipment with a conventional cooling spiral (1) and pump (2) for the oil, and an electrical heating element. In the new design, a variable-speed motor (3) drives the pump and/or a proportional valve alters the quantity of oil through a cooling zone. Preferred features: A similar variant based on the foregoing method is claimed. Temperature of the circulating oil is held approximately constant by regulation of coolant quantity. The quantity of coolant for the oil used for heat transfer, is controlled as a function of oil temperature. The oil temperature is raised above the coolant temperature for the minimal flowrate during heating phases. The quantity of oil is varied by changing the speed of the pump drive, and/or by using a proportional valve. The cross section of the extruder cylinder in at least one of the heating zones, is approximately elliptical or oval.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0037700A AT411890B (en) | 2000-03-07 | 2000-03-07 | METHOD FOR HEATING AND COOLING EXTRUDER CYLINDERS AND DEVICE THEREFOR |
Publications (1)
Publication Number | Publication Date |
---|---|
DE50106841D1 true DE50106841D1 (en) | 2005-09-01 |
Family
ID=3673066
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE50106841T Expired - Lifetime DE50106841D1 (en) | 2000-03-07 | 2001-03-06 | Method for heating and cooling extruder cylinders and apparatus therefor |
Country Status (6)
Country | Link |
---|---|
US (1) | US6495804B2 (en) |
EP (1) | EP1132192B1 (en) |
AT (2) | AT411890B (en) |
DE (1) | DE50106841D1 (en) |
ES (1) | ES2244577T3 (en) |
PT (1) | PT1132192E (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE520513T1 (en) * | 2001-05-23 | 2011-09-15 | A San Chemicals Co Ltd | METHOD AND DEVICE FOR PRODUCING PELLET FOAM FROM NON-CROSS-ROCLED POLYPROPYLENE RESIN WITH LOWER MELTING POINT |
US20030185925A1 (en) * | 2002-03-29 | 2003-10-02 | Fuji Photo Film Co., Ltd. | Cool-dissolving apparatus and heat-dissolving apparatus for producing polymer solution and products thereof |
GB2405132A (en) * | 2003-08-19 | 2005-02-23 | Robin Matthew Hilder | I/C engine driven extruder heated by exhaust gas |
DE10356350B4 (en) * | 2003-11-28 | 2008-04-30 | Battenfeld Extrusionstechnik Gmbh | Method for tempering a roller part of a planetary roller extruder |
ITTO20040717A1 (en) * | 2004-10-15 | 2005-01-15 | Incos Spa | INJECTOR FOR PLASTIC INJECTION MOLDING EQUIPMENT |
ITTO20050158A1 (en) * | 2005-03-11 | 2006-09-12 | Incos Spa | ENERGY CONTROL SYSTEM FOR PLASTIC INJECTION MOLDING EQUIPMENT |
JP4886648B2 (en) * | 2007-09-28 | 2012-02-29 | 富士フイルム株式会社 | Melt extrusion apparatus and method for producing thermoplastic resin film |
DE102011114576A1 (en) * | 2011-09-30 | 2013-04-04 | Thermo Electron (Karlsruhe) Gmbh | extruder |
CN102829169A (en) * | 2012-08-27 | 2012-12-19 | 中冶南方工程技术有限公司 | Lubricating cleaning system for coal mill |
DE202014003601U1 (en) | 2014-05-04 | 2014-07-03 | Ernst Krüger | Autothermal cylinder temperature control |
AT517592B1 (en) * | 2015-11-27 | 2017-03-15 | Engel Austria Gmbh | tempering |
CN106015905A (en) * | 2016-06-30 | 2016-10-12 | 南京中船绿洲机器有限公司 | Low temperature rise lubrication system of disc separator |
US11609021B2 (en) | 2017-09-27 | 2023-03-21 | Gd Midea Heating & Ventilating Equipment Co., Ltd. | Air conditioner indoor unit, air conditioner control method, air conditioner and storage medium |
CN107990409A (en) * | 2017-11-03 | 2018-05-04 | 广东美的暖通设备有限公司 | Indoor apparatus of air conditioner, the control method of air-conditioning, air-conditioning and storage medium |
CN108748815B (en) * | 2018-08-21 | 2023-12-08 | 长春市三才科技发展有限公司 | Reciprocating heating forming machine for nylon tube |
CN116277870A (en) * | 2022-04-12 | 2023-06-23 | 新天力科技股份有限公司 | Intelligent production line suitable for plastic packaging containers |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1467944A (en) * | 1965-12-23 | 1967-02-03 | Device for controlling the temperature of an extruder cylinder | |
DE1939248A1 (en) * | 1969-08-01 | 1971-02-11 | Metallgesellschaft Ag | Arrangement for temperature control of melt extruders |
US4102958A (en) * | 1974-05-02 | 1978-07-25 | Owens-Illinois, Inc. | Method of controlling an extruder |
US4088430A (en) * | 1976-03-12 | 1978-05-09 | Phillips Petroleum Company | Automatic control of extrusion |
GB1572514A (en) * | 1976-04-23 | 1980-07-30 | Durapipe Ltd | Moulding of synthetic plastics products |
DE2756752A1 (en) * | 1977-12-20 | 1979-06-21 | Werner & Pfleiderer | Cooling or heating a screw-extruder barrel with interior recess - contg. a wearing inset, using a heat-exchanger coil for conveying tempering medium, and packing remaining space with low-melting metal alloy |
US4272466A (en) * | 1980-08-04 | 1981-06-09 | Harrel, Incorporated | System and method of temperature control for plastics extruder |
DE3308138A1 (en) * | 1983-03-08 | 1984-09-13 | Riedel Kälte- und Klimatechnik GmbH & Co KG, 8500 Nürnberg | ARRANGEMENT FOR TEMPERATURE DEVICES FOR PLASTIC PRODUCTION OR PLASTIC PROCESSING |
DE3335954A1 (en) * | 1983-10-04 | 1985-04-04 | Roland Dipl.-Kaufm. 7022 Leinfelden-Echterdingen Belz | METHOD FOR CARRYING OUT CHEMICAL REACTIONS, ESPECIALLY FOR THE PRODUCTION OF PLASTICS WITH THE AID OF EXTRUDERS, AND SYSTEM FOR THAT |
US4548341A (en) * | 1983-11-02 | 1985-10-22 | At&T Technologies, Inc. | Plastic injector with heat control |
DE3629995C1 (en) * | 1986-09-03 | 1988-02-18 | Reifenhaeuser Masch | Plant for the extrusion of thermoplastic |
US5355938A (en) * | 1989-03-20 | 1994-10-18 | Toshiba Machine Co., Ltd. | Temperature control device |
US5149193A (en) * | 1991-01-15 | 1992-09-22 | Crompton & Knowles Corporation | Extruder temperature controller and method for controlling extruder temperature |
US5462423A (en) * | 1993-04-13 | 1995-10-31 | Sencorp Systems, Inc. | Apparatus for non-mechanical die lip temperature adjustment in an extruder |
EP0785061A4 (en) * | 1995-07-20 | 2000-04-26 | Sato Iron Works | Temperature control system and kneading extrusion molding machine provided with the same |
-
2000
- 2000-03-07 AT AT0037700A patent/AT411890B/en not_active IP Right Cessation
-
2001
- 2001-03-06 EP EP01890062A patent/EP1132192B1/en not_active Expired - Lifetime
- 2001-03-06 ES ES01890062T patent/ES2244577T3/en not_active Expired - Lifetime
- 2001-03-06 DE DE50106841T patent/DE50106841D1/en not_active Expired - Lifetime
- 2001-03-06 AT AT01890062T patent/ATE300412T1/en not_active IP Right Cessation
- 2001-03-06 PT PT01890062T patent/PT1132192E/en unknown
- 2001-03-07 US US09/801,324 patent/US6495804B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1132192B1 (en) | 2005-07-27 |
EP1132192A3 (en) | 2004-01-21 |
PT1132192E (en) | 2005-09-30 |
ATE300412T1 (en) | 2005-08-15 |
ATA3772000A (en) | 2003-12-15 |
EP1132192A2 (en) | 2001-09-12 |
US6495804B2 (en) | 2002-12-17 |
ES2244577T3 (en) | 2005-12-16 |
US20010025708A1 (en) | 2001-10-04 |
AT411890B (en) | 2004-07-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE50106841D1 (en) | Method for heating and cooling extruder cylinders and apparatus therefor | |
US4893479A (en) | Compressor drive system | |
HK1069626A1 (en) | System and method for rapid heating of fluid | |
CA1088184A (en) | Electronic speed control for a variable speed fan drive | |
KR880701855A (en) | Dual Bed Heat Pump | |
DE69425914D1 (en) | Process for rapidly changing heating and / or cooling | |
EP0875631A4 (en) | Cooling device for a construction machine | |
EP0903482A3 (en) | Control device of the coolant circuit for an internal combustion engine | |
DE3878919D1 (en) | DEVICE AND METHOD FOR COOLING THE ENGINE. | |
NO20010665D0 (en) | A method of controlling the temperature of a climate chamber, as well as a climate device | |
ATE410312T1 (en) | REVERSIBLE HEAT SENSITIVE RECORDING MATERIAL, IMAGE PRODUCING APPARATUS AND IMAGE PRODUCING METHOD | |
DE69000262D1 (en) | METHOD AND APPARATUS FOR REGULATING OR CONTROLLING THE HEATING DEGREE OF A GRAINY SOLID, IN PARTICULAR A FLUID OR HIKING BED HEAT EXCHANGER WITH SEVERAL CHAMBERS. | |
DE69404872D1 (en) | Cooling method and device for an extruder barrel | |
EP0841203A3 (en) | Heating apparatus for vehicle | |
WO2005004626A3 (en) | Process control scheme for cooling and heating compressible compounds | |
ATE299766T1 (en) | METHOD AND DEVICE FOR THERMAL CONTROL OF A CONTINUOUS CASTING MOLD | |
DE10009959B4 (en) | Method for protecting an engine against overheating and control and / or regulating device therefor | |
EP1203894A3 (en) | Bearing cooling device | |
FR2863661B1 (en) | METHOD FOR THERMALLY REGULATING A FLUID CIRCUIT CIRCUIT, ESPECIALLY FOR AN ENGINE COOLING CIRCUIT | |
ATE410526T1 (en) | METHOD AND DEVICE FOR HEAT TREATING WORKPIECES | |
DE60316194D1 (en) | METHOD AND DEVICE FOR COOLING DRILLING LIQUID | |
NL9000003A (en) | CLOSED USAGE CIRCUIT FOR A CALORIC MEDIUM. | |
EP1316696A3 (en) | Control device for a fan and method for operating same | |
DE60220784D1 (en) | METHOD AND DEVICE FOR REGULATING A COOKING DEVICE | |
SU937969A1 (en) | Heat exchange process control method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |